Flush-tank valve



F. L. SHOPPE, E. G. HEDGES, AND W. W. HEROY.

FLUSH TANK VALVE.

APPLICATION FILED IMAYM, 1921.

' Fig Patented June 20,1922.

UNITED) ATENT OFFICE...

FRANK I. SHOPPE, OF PASSAIC, EDWARD G; HEDGES, OF NEWARK, AND WALTER W.

' HEROY, OF BLOOMFIELD, NEW JERSEY.

- FLUSH-TANK VALVE.

Specification of Letters Patent. Patented June 20, 1922 Applicationfiled May 14, 1921. Serial No, 469,528 e Bloomfield, county of Essex,and State of New Jersey, all citizens of the United States, haveinvented certain new and useful Im- V V provements in Flush-Tank Valves,fully described and represented in the following specification and theaccompanying drawings, forming a part of the same.

The present invention relates to a flushvalve of the class that is shownand de-.

scribed in Patent No. 1,237,109 issued August 14, 1917 to Frank L.Shoppe for improvement in flush-tank valves.

In the flush-valve of said patent, an elastic rubber seat was projectedupward from the tank-outlet and provided with an annular lip to embracethe bottom-end of a floatvalve when resting upon the same.

The flexibility of such lip enabled it to snugly embrace the lower endof the valve and thus secure a watertight joint under the slightpressure that the weight of a float valve could exert when not immersedin water.

In the construction referred to, a floatvalve settled downward in thetank at the same rate that the water was discharged, and as itapproached the valve-seat it more or less obstructed the outlet for thewater remaining in the tank. It is desirable to leave as little water inthe tank as possible, and the projection of the rubber valve-seat abovethe outlet-pipe limits the descent of the valve to a considerabledegree.

By the present invention, the water flows to the outlet-pipe at a lowerlevel and thus discharges the tank more fully.

This is efiected by providing means for holding the fioat-valvesuspended above the valve-seat during the discharge of the water in thetank to the level of the seat, thus leaving the passage for the escapeof the water unobstructed, while permitting the, valve to immediatelydescend when the water has fallen to the predetermined point, and thusclosing the valve-outlet in readiness for the refilling of the tank.

The means to prevent the float-valve from descending at the same rate asthe water in the tank, consists of an inverted water-ohamher sustainedover the valve-seat and en- I closing the float-valve, and operating tosus tain the float-valve by the maintaining of the water in the saidchamber until the tank is nearly empty.

Such operation of the water-chamber is effected by means of awater-inlet at its bottom and an air-passage at the top, the valve beingarranged to close the air-passage when the water raises the valvesufliciently to press againstit.

, The valve exerts such pressure from itsbuoyancy, and operates toprevent the entrance of air through the air-passage, and thus retainsthe water inthe water-chamber until the water in the tank has fallen tothe level of the water-inlet at the bottom of the chamber. When thatoccurs, air enters the chamber at the bottom, which displaces the waterin the chamber and allows the same to escape by the outlet, while suchescape lowers the valve into contact with the outlet seat.

Theinvention will beunderstood by reference to the annexed drawing, inwhich Fig. 1 is a section of a flush-tank with the waterchamberenclosing the float-valve; Fig 2 is a central vertical section of thechamber attached to the clamp-ring holding the rubber valve-seat inplace; Fig. 3 is a plan of the outlet and valve-seat; and Fig. 4 showsthe lower end of the water-chamber.

A designates the flush-tank in Fig. 1, and B the outlet to the closetbowl, B the overflowv pipe, and B the port connecting the outlet B withsuch pipe. The outlet is controlled by the float-valve C. This valve isshown tapering toward the bottom to readily enter the rubber valve-seatD which is provided with the annular lip D, as shown in the said PatentNo. 1,237,109.

Such float-valves may be made of any suitable material and are floatedby the air therein, and the tapering body forms a tight joint with therubber-seat. D is the supply-pipe provided upon the top with asupply-valve E controlled by the valve-lever F.

An inverted water-chamber E is attached to the ring a which, by thescrews d upon the outlet-seat, clamps the rubber facing to such seat.The water-chamber thus encloses the valve and is provided withWater-inlet b at the bottom and air-passage c at the top.

When the valve is raised by the handle h and lifter-rod f, it crowdsagainst the airpassage and wholly excludes the air from the interior ofthe chamber.

It will be observed that the valve is thus doubleended, and closes anaperture at either extreme of its movement upward or downward. Then thevalve rises it closes the air-passage, and when it falls it closes theoutlet.

The upper end of the float-valve is shown provided with a conicalstopper e which enters the passage 0 when the valve is raised, and thussecures an eflectual closing of such passage. When this occurs, thewater-chamseat to flush thebasin. The rod f is shown extended downwardlythrough the valveseat into a guide 9 which is provided in the outlet B.

lVith this construction, the float-valve is lifted in the usual way bythe rod and crank to flush the basin when required, the floatvalve whenit is lifted clear from the seat rising by its bouyancy into the upperpart of the water-chamber, and pressing the stopper 6 into the passage0.

This prevents the escape of the watercharge from the water-chamber andholds the float-valve by its buoyancy in the top of the chamber untilthe water in the tank descends to the level of the water-inlet Z). Y Theentrance of air to the water-inlet thus allows the water in the chamberto escape to the outlet '5, and the float-valve to finally seat itselfupon the rubber seat D.

The water-chamber with air-passage in the top closed by the float-valve,when the tank is filled, entirely changes the operation of thefloat-valve without adding any mova water-chamber enclosing thefloat-valve.

and having a water-inlet near the said seat and an air-passagein thetop, the float-valve being provided with a stopper to close the saidpassage and with a rod extended through the passage to lift the valvefor flushing the tank, the stopper excluding the air from within thechamber until the charge 7 of the tank is lowered to the saidwaterinlet. I

2. The combination, with a flush-tank-outlet having clamping ears at thesides, of a clamping-mug w th corresponding lugs, a

flexible valve-seat fitted between the said outlet and the clamping-ringwith bolts for.

pressing the parts together, and a water chamber extended upward fromthe clamping-ring and provided with a water-inlet near the bottom andair-passage in the top, and a float-valve adapted to fit the flexiblevalve-seat and having at its upper end a stopper to close theair-passage during the lowering of the charge in the tank.

3. The combination, with a flush-tarik-outlet having clamping ears atthe sides, of a clamping-ring with corresponding lugs, a

flexible valve-seat fitted between the said outlet and theclamping-ring, with bolts for pressing the parts together, awater-chamber extended upward from the clamping-ring and provided with awater-inlet near the bottom and an air-passage in the top, a floatvalveadapted to fit in the flexible outletseat and having at its upper end aconical stopper to close the air-passage, with a rod secured in thecenter of the stopper for lifting the float-valve when upon theoutletseat.

In testimony whereof we have hereunto set our hands.

FRANK L. SHOPPE. EDWARD Gr. HEDGES. WALTER- VV. HEROY.

